<template>
  <div>
    <table border="1" width="700" style="border-collapse: collapse">
      <caption>
        购物车
      </caption>
      <thead>
        <tr>
          <th><input type="checkbox" v-model="isAll" /> <span>全选</span></th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <!-- 渲染 -->
        <shopS
          v-for="(item, index) in goodList"
          :key="index"
          :item="item"
          :index="index"
        >
        </shopS>
      </tbody>
      <tfoot>
        <tr>
          <td>合计:</td>
          <td colspan="5">
            {{ totalPrice }}
          </td>
        </tr>
      </tfoot>
    </table>
  </div>
</template>

<script>
import { mapState, mapGetters } from 'vuex'
import shopS from './components/shopS.vue'
export default {
  components: { shopS },
  data () {
    return {}
  },
  computed: {
    // 辅助函数
    ...mapState(['goodList']),
    ...mapGetters(['totalPrice']),
    // 全选反选
    isAll: {
      get () {
        return this.goodList.every((item) => item.checked)
      },
      set (val) {
        this.$store.commit('checkedchange', val)
      }
    }
  }
}

</script>

<style></style>
